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Item#: N82E16817207028

XFX P1-850B-BEFX 850W ATX12V 2.2 & ESP12V 2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply

  • ATX12V 2.2 & ESP12V 2.91
  • Full Modular
  • 80 PLUS GOLD Certified
  • 100 - 240 V 50/60 Hz
  • +3.3V@25A, +5V@25A, +12V@70A, -12V@0.8A, +5VSB@3A
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Learn more about the XFX P1-850B-BEFX

Model

Brand
XFX
Model
P1-850B-BEFX

Spec

Type
ATX12V 2.2 & ESP12V 2.91
Maximum Power
850W
Fans
1
PFC
Active
Main Connector
20+4Pin
+12V Rails
Single
PCI-Express Connector
6 x 6+2-Pin
SATA Power Connector
10
SLI
SLI Ready
Haswell Support
Certified
CrossFire
CrossFire Ready
Modular
Full Modular
Efficiency
Up to 90%
Energy-Efficient
80 PLUS GOLD Certified
Over Voltage Protection
Yes
Input Voltage
100 - 240 V
Input Frequency Range
50/60 Hz
Input Current
11A - 5.5A
Output
+3.3V@25A, +5V@25A, +12V@70A, -12V@0.8A, +5VSB@3A
Dimensions
3.4" x 5.5" x 6.3"

Features

Connectors
1 x 20+4pin main connector
1 x 4+4pin & 1 x EPS 12V 8pin
6 x 6+2pin PCI-E
1 x FDD
Up to 10 x SATA
Up to 5 x Peripheral

Quick Info

Warranty

  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years


Customer Reviews of the XFX P1-850B-BEFX

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  • Brad B.
  • 4/12/2014 6:42:54 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsDoes what is advertised

Pros: full modular, gold certified so it's guaranteed to give 90% of the advertised power, supplies sufficient power for 6 fans, a geforce gtx 770, msi gaming motherboard with a unlocked i5 haswell processor and plenty of plugs for extra harddrives or disc drives. power connectors that are not required will not be on the psu.

Cons: the plugs will barely reach the connectors on the motherboard and as such will be problematic for those who like to tie down their cables or run them through holes on the other side of the motherboard.

Other Thoughts: the power connectors for the harddrive/disc drive would benefit from an extra inch b/w each plug for a full chassis environment, especially for those with multiple drives.

Manufacturer Response:

Hello and thank you for the great review.

If you have any quesitons, please contact us at neweggsupport@xfxforce.com.

Play Hard!

Did you find this review helpful? Yes No

  • rick c.
  • 3/26/2014 11:21:10 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsAwesome

Pros: Worked like a champ on my amd 290

Cons: My amd got power hungry and melted one of the plugs and socket for the psu to gpu cable.

Other Thoughts: Was able to rma gpu and psu both returned in a decent amount of time. As far as getting a response back from support ticket and people blasting xfx for support, I was delighted to get my new psu, cables and all in less than a month.

Manufacturer Response:

Thank you for the great review! We are happy you are pleased.

If you have any questions, please contact us at neweggsupport@xfxforce.com

Did you find this review helpful? Yes No

  • Adam B.
  • 3/15/2014 2:30:41 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsAwesome PSU, Modular cables... Not so much.

Pros: This is a rebranded Seasonic. It's got an extremely consistent output, fully modular, 5 year warranty and is Gold rated.

All black flexible ribbon cables.

Cons: Just wish XFX would sell an extra set of modular cables as most of the cables are at least 6 inches too long for my mid-size ATX case. I would love to purchase another set and cut, crimp, and sleeve these cables for a perfect fit.

The GPU cables are all 6+2 pin and have 2 plugs per cable. I understand that this PSU is rated for and can accommodate Multi-GPU setups but if you are only running a single card like me, you'll have an extra plug hanging inside your case. With my GFX card (EVGA nvidia 780 reference with ACX cooler) the extra plug on the cable points directly to one of the fans on the card, so I had to bend the cable to point straight down.

Manufacturer Response:

Thank you for the great review. We are happy you are pleased.

If you have any questions, please contact us at neweggsupport@xfxforce.com.

Play Hard!

1 out of 1 people found this review helpful. Did you? Yes No

  • Nicholas G.
  • 2/25/2014 5:45:32 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsPlenty of power

Pros: Plenty of power no issues. I thought I might not like it but its great.

Cons: none so far

Manufacturer Response:

Thank you for the great review. We are happy that you are pleased.

If you have any questions, please contact us at neweggsupport@xfxforce.com.

Play Hard!

1 out of 1 people found this review helpful. Did you? Yes No

  • William R.
  • 11/23/2013 12:57:19 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsflawless for almost a year

Pros: Worked great while it worked and didn't take any of my equipment with it when it died.

Cons: Just randomly died one night.

Other Thoughts: I love xfx wish this had worked out differently.

Manufacturer Response:

Hello Big E, this PSU has a 5 year warranty. Please create a ticket at xfxsupport.com or email us at neweggsupport@xfxforce.com for assistance. Thank you

1 out of 1 people found this review helpful. Did you? Yes No

  • Francis B.
  • 8/19/2013 5:40:09 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGreat PSU silent and efficient

Pros: 1. Full modular
2. Hybrid or Normal Fan regardless which you choose the fan is silent
3. Deliver the watts you need I am usint this on a GTX 780 SLI no problem here

Cons: I got an open box from newegg that's why I took 1 star I think they send me a refurbish one when it is listed as new and paid it for like a brand new price I didnt bother to sent it back its to much thing to do for me hope this PSU will last long

Other Thoughts: It could have a LED as a plus and have some modular color coded not only pure black

Manufacturer Response:

Thank you for the great review! If you ever have an issue with this PSU, or a question, please contact our XFX Support team at neweggsupport@xfxforce.com.

Play Hard!

1 out of 1 people found this review helpful. Did you? Yes No

  • Anonymous
  • 8/1/2013 6:29:29 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsso far so good.....

Pros: Nice PSU.....basically a rebranded Seasonic. Plenty of cables and fully modular. Good price for a budget builder. And the gold rating doesn't hurt either. Enabled my to overclock my FX8350 to 5.0 GHz with easy and piece of mind. Like the hybrid switch. Allows for a quiet operation.

Cons: Cables are ugly gloss black. I'm a big fan of red cables and red builds. other than that not much else.

Other Thoughts: If your looking for a cheaper Seasonic this is the one. XFX seems to have a good thing with Seasonic on this one. Almost bought the 1050watt but didn't need that much power as I have a lower end gaming rig.

Manufacturer Response:

We're glad its working great for you. We appreciate the positive review. As always, if you have any questions, please contact us at neweggsupport@xfxforce.com. Play Hard!

Did you find this review helpful? Yes No

  • Brandon M.
  • 6/13/2013 1:21:53 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsWhats up with support???

Pros: Was a solid PSU

Cons: Had it 4 months then fried!?! Now I have submitted a ticket to XFX support to no response for a week now! Very disappointing! I have many other XFX products and would expect better service than this!

Manufacturer Response:

Hello, all of our ticket responses are up to 24 hours, please check your support ticket for updates at xfxsupport.com. Thank you

1 out of 1 people found this review helpful. Did you? Yes No

  • Emile A.
  • 5/19/2013 10:18:51 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGreat PSU, sleezy company

Pros: Fully modular, Hybrid Fan Mode (only runs fan under 20% load or more), Gold-certified efficiancy, quiet. Used this for my new office PC build. Just a top-notch PSU overall.

Cons: Fully modular CAN take up more space, so this may be an issue for people looking to use this in a compact Mini-ITX build.
XFX rejected my claim for the $15 mail-in rebate stating that an invoice or packing list was not included. They even scanned my documents to the rebate service who e-mailed me the link, which even clearly shows my invoice was in there! I can re-submit the claim, but how without the original cut-out of the serial number from the box.

Other Thoughts: Great PSU but a sleezy company that did not honor my rebate. XFX even ignored my follow-up e-mail about denying my claim. I had all the proper documentation and even have photocopies of everything that I sent to them so don't say I didn't warn you if you buy this counting on the rebate.

Due to this kind of behavior, I recently purchased the SeaSonic equivalent of this PSU for a new build I am working on, because XFX left a bad taste in my mouth.

Manufacturer Response:

Hello, we're sorry you had an issue with your rebate. Since we do not handle our rebates, and a 3rd party does it for us, I will be happy to personally take your case to them myself. Please email your rebate documents at neweggsupport@xfxforce.com so i may proceed. Thank you

Did you find this review helpful? Yes No

  • john m.
  • 5/1/2013 3:28:09 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsFull Modular Love

Pros: Fully modular and 850 watts. cant beat the price

Cons: none at all

Other Thoughts: This thing is awesome!!! No more unnecessary cables and looks very nice. Powers my Radeon 7970 GHZ edition quite well along with my AMD FX 8350, 250 GB SSD and 1.5TB plus my 6 Fans and controller. mostly love the fully modular design!

Did you find this review helpful? Yes No

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Item#: N82E16817207028
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